487
FXUS65 KBYZ 280223
AFDBYZ
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BILLINGS MT
823 PM MDT SAT JUN 27 2026
KEY MESSAGES
- SHOWERS AND THUNDERSTORMS AGAIN SUNDAY. SEVERE STORMS ARE NOT
EXPECTED.
- SNOW IS LIKELY IN THE MOUNTAINS ABOVE 8000 FEET TONIGHT INTO
SUNDAY MORNING AND SUNDAY NIGHT INTO MONDAY, WITH ACCUMULATIONS
OF 1-3".
- WINDY FOR AREAS NORTH OF THE MT/WY BORDER SUNDAY AND MONDAY,
WITH GUSTS TO 30-50 MPH, GREATEST IN THE WESTERN FOOTHILLS.
- WARMING AND DRYING TREND NEXT WEEK.
UPDATE
THE SEVERE WEATHER THREAT HAS ENDED FOR THIS EVENING ACROSS THE
AREA. A FEW SHOWERS AND ISOLATED THUNDERSTORMS ARE POSSIBLE
OVERNIGHT BUT SEVERE WEATHER IS NOT EXPECTED. LOOK FOR COOLER AIR
TO MOVE IN TONIGHT, WITH STEADIER RAIN AND HIGHER ELEVATION SNOW
SETTING IN ACROSS PORTIONS OF CENTRAL MONTANA, IMPACTING THE CRAZY
AND ABSAROKA-BEARTOOTH MOUNTAINS, MAINLY ABOVE 8,000 FT. JW
DISCUSSION
WINTER WEATHER: COOLER AIR WILL CAUSE PRECIPITATION TO CHANGE TO
SNOW IN THE CRAZY AND BEARTOOTH/ABSAROKA MOUNTAINS AS EARLY AS
TONIGHT. SNOW WILL CONTINUE AT TIMES INTO MONDAY. ACCUMULATIONS
SHOULD REACH 1-3" ALONG THE BEARTOOTH PASS WITH HIGHER AMOUNTS OF
5-9" ELSEWHERE IN THE BEARTOOTH AND CRAZY MOUNTAINS, MAINLY ABOVE
8000 FEET. BECAUSE OF IMPACTS TO TRAVEL ALONG THE BEARTOOTH PASS,
ISSUED A WINTER WEATHER ADVISORY FOR THAT AREA FROM 10PM TONIGHT
TO 6PM MONDAY.
SUNDAY: SCATTERED SHOWERS AND THUNDERSTORMS WILL BE AROUND (20-90%
CHANCE, GREATEST IN WESTERN MOUNTAINS) BUT WITH LOWER DEWPOINTS
AND COOLER AIR IN THE LOWER LEVELS, INSTABILITY WILL BE LOWER,
SO SEVERE THUNDERSTORMS ARE NOT EXPECTED THIS DAY.
WIND: IT WILL BE WINDY ACROSS MUCH OF THE AREA NORTH OF THE MT/WY
BORDER ON SUNDAY AND AGAIN MONDAY, WITH A 700 MB LOW TO OUR NORTH.
LOOK FOR WIND GUSTS OF 30-50 MPH WITH THE STRONGEST GUSTS IN THE
WESTERN FOOTHILLS.
OVERALL THE TREND FOR NEXT WEEK WILL BE TOWARD WARMER AND DRIER
WEATHER. 500 MB PATTERN AND CSU MACHINE LEARNING OUTLOOKS DO NOT
SUGGEST A RISK OF SEVERE THUNDERSTORMS MONDAY AND TUESDAY, BUT A
LOW RISK OF SEVERE WEATHER DOES EXIST FOR AREAS NORTH AND EAST OF
BILLINGS WEDNESDAY-FRIDAY. TORGERSON/RMS
AVIATION
SCATTERED SHOWERS ARE POSSIBLE OVERNIGHT WITH THE POTENTIAL FOR
BRIEF MVFR CONDITIONS. STEADIER SHOWERS THEN SET UP ACROSS CENTRAL
MONTANA TONIGHT AND DURING THE DAY ON SUNDAY BRINGING MVFR
CONDITIONS TO KLVM. SNOW WILL IMPACT THE HIGHER ELEVATIONS OF THE
CRAZY AND ABSAROKA-BEARTOOTH MOUNTAINS WHERE LOW VISIBILITIES
WILL OBSCURE THE HIGHER TERRAIN. FURTHER EAST A FEW SHOWERS ARE
POSSIBLE BUT CONDITIONS SHOULD REMAIN VFR AT KBIL, KSHR,AND KMLS.
JW
PRELIMINARY POINT TEMP/POPS
SUN MON TUE WED THU FRI SAT
-----------------------------------------------------------
BIL 052/068 049/067 051/076 052/081 055/086 058/087 057/082
72/W 46/W 31/B 12/T 10/U 11/B 32/T
LVM 043/057 039/057 041/070 043/075 045/080 049/081 047/077
98/T 99/T 73/T 33/T 32/T 23/T 32/T
HDN 050/072 047/071 050/077 050/082 053/088 056/090 056/084
52/W 15/W 31/B 11/B 20/U 11/B 22/T
MLS 054/073 050/071 052/077 053/082 056/088 060/091 060/084
72/N 15/W 31/B 12/T 11/U 12/T 22/W
4BQ 054/076 051/073 052/078 053/083 056/089 061/093 060/085
51/U 13/T 11/U 12/T 11/U 11/U 22/W
BHK 052/076 049/073 048/076 050/082 053/087 057/092 057/084
61/U 36/T 21/N 13/T 12/T 12/T 32/T
SHR 046/072 044/071 045/075 046/080 049/086 054/089 054/082
31/U 22/T 12/T 22/T 11/U 01/B 12/T
BYZ WATCHES/WARNINGS/ADVISORIES
MT...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT MONDAY FOR
ZONE 67.
WY...NONE.
WEATHER.GOV/BILLINGS
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page